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从苦丁茶冬青叶中分得4个新的三萜酯,及6个已知三萜,其化学结构分别由NMR,MS,IR等方法获得。这4个新三萜酯是:α-香树醇-3β-棕榈酸酯,11-羰基-α-香树醇-β-棕榈酸酯,3β-羟基-羽扇-20(29)-烯-24羰酸甲酯和羽扇-20(29)-烯-24-羰酸甲酯-3β-棕榈酸酯。
Four new triterpene esters and four known triterpenoids were isolated from the leaves of Ilex kudingcha. The chemical structures of the three triterpenes were obtained by NMR, MS and IR respectively. These 4 neoterpene esters are: α-muscarinic-3β-palmitate, 11-carbonyl-α-muscarinic -β-palmitate and 3β-hydroxy-lupan-20 (29) 24 methyl carboxylate and lupus-20 (29) -ene-24-carboxylate-3β-palmitate.